2806049909 has 16 divisors (see below), whose sum is σ = 3149712384. Its totient is φ = 2482272000.

The previous prime is 2806049899. The next prime is 2806049927. The reversal of 2806049909 is 9099406082.

2806049909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2806049909 - 2¹⁶ = 2805984373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2806049969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7709 + ... + 75309.

It is an arithmetic number, because the mean of its divisors is an integer number (196857024).

Almost surely, 2^2806049909 is an apocalyptic number.

It is an amenable number.

2806049909 is a deficient number, since it is larger than the sum of its proper divisors (343662475).

2806049909 is a wasteful number, since it uses less digits than its factorization.

2806049909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67748.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 2806049909 is about 52972.1616417529. The cubic root of 2806049909 is about 1410.4741474980.

The spelling of 2806049909 in words is "two billion, eight hundred six million, forty-nine thousand, nine hundred nine".